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LetteraPatent No. 68,768, dated'eptemberl, 1867. i

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TO WHOM IT MAY CONCERN.: p Y

Be it k'nown that I, WILL'IAM S. MCKINNEY, of Cincinnati, in the county`of Hamilton, and State of Ohio, have invented al newA and usefulShaft-Coupling;4 and I hereby declare the following Vto be a full,Vclear, and exact description thereof, reference being had to theacc'ompanyingrdrawings, making part of this specification. 4Myinventionrelates to a simple, compact, end secure joint or coupling'for` uniting together the ends of line shafting. l p i 'A Figure 1 is aperspectveview of the parts oi'nly coupling detached v Figure 2 is auaxial section showing tivo contiguous-ends of' shutting coupled oruuitedto4 each other. l A A represent the contiguous ends of twopiecesof lin'e shafting.. Keyed. or otherwise securely fastened to theends of the shafts are two interlocking clutches, B C, of which one isscrew-threaded exterior-ivo, to receive the interior-ly screw-threadedsleeve or band D, which hand has a lip, d., that engages hehindthe.shoulder c of the clutch C. One or more sockets d are provided -in theperiphery ofthe sleeve for the application of a 4turning-wrench to4fasten or unfasten tliejoint; l i l u I claim herein as new, and of `myinvention- The combination of the screw-threaded and lipped sleeve Dwiththe serein-threaded clutch B and philin clutch C, as and for the purposeherein described and represented. n

In testimony of which' invention I hereunto set my hand;

4- WILLIAM s. McKINNEY. c

Witnesses:

GEo.- H. KNIGHT, JAMES H. ILAYMAN.

